II. Indications
- Rheumatoid Arthritis Severity Assessment
III. Criteria
- Tender joint count (out of 28 joints)
- Swollen join count (out of 28 joints)
- C-Reactive Protein
- Patient Global Assessment of Disease Activity (on visual analog scale)
- Evaluator Global Assessment of Disease Activity (on visual analog scale)
IV. Interpretation
- Total Score (range of possible scores 0 to 86)
- Score <= 3.3: Remission
- Score <= 20: Low disease activity
- Score <= 40: Moderate disease activity
- Score >40: High disease activity
- Change from prior SDAI
- Score Decrease 10 to 21: Minor Improvement
- Score Decrease >=22: Major Improvement
V. Resources
- Simple Disease Activity Index (MDCalc)